WÓJCIK, Dariusz. Evaluation of near field of the GSM base station antennas in urban environment. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 11, n. 1, p. 41–44, 2003. DOI: 10.26636/jtit.2003.1.155. Disponível em: https://www.jtit.pl/jtit/article/view/155. Acesso em: 5 aug. 2026.